Review of Palaeobotany and Palynology, Nov 1, 2012
Abstract Specific gravity (SG) is a key functional trait that has been linked to plant life histo... more Abstract Specific gravity (SG) is a key functional trait that has been linked to plant life history traits (eg growth rate, life spans) and ecological properties (eg cavitation resistance, water transport capacity). SG estimation can thus provide important information about the ecological characteristics of fossil assemblages. Since SG is also related to wood productivity, it can also inform about forest biomass and variation in terrestrial carbon stores over time. Here, we develop a straightforward method to predict SG based on wood ...
The frequency of wood-anatomical characters in the eastern North America dicotyledonous tree flor... more The frequency of wood-anatomical characters in the eastern North America dicotyledonous tree flora shows spatial variance that can be related to climate (40% of the variation in 18 characters is explained by temperature and precipitation). Percent of taxa with rings varies with mean annual temperature, but the relationship is weak and the difficulties in making determinations as to presence or
The fossil woods and leaves of the Fossil Forest Piedra Chamana represent a diverse assemblage of... more The fossil woods and leaves of the Fossil Forest Piedra Chamana represent a diverse assemblage of plants dating to 39 Ma (late Middle Eocene). The fossils are preserved in an ashfall and overlying lahar deposits near the small village of Sexi in the northern Peruvian Andes (central Cajamarca). The assemblage includes dicot wood types and leaf morphotypes, as well as a diversity of monocot material. The ~30 dicot wood types are referred to the families Acanthaceae, Anacardiaceae, Apocynaceae, Combretaceae, Cordiaceae, Dipterocarpaceae, Euphorbiaceae, Fabaceae, Lechythidaceae, Lythraceae, Malvaceae, Melastomataceae, Muntingiaceae, Rubiaceae, Rutaceae, and Sapindaceae. Described herein are descriptions of the first 17 wood types that have been assigned to the families Acanthaceae through Lythraceae; descriptions of the additional wood types will appear in a later paper. The paleovegetation can be characterized as lowland tropical forest with a dry aspect based on preliminary analysis o...
Review of Palaeobotany and Palynology, Nov 1, 2012
Abstract Specific gravity (SG) is a key functional trait that has been linked to plant life histo... more Abstract Specific gravity (SG) is a key functional trait that has been linked to plant life history traits (eg growth rate, life spans) and ecological properties (eg cavitation resistance, water transport capacity). SG estimation can thus provide important information about the ecological characteristics of fossil assemblages. Since SG is also related to wood productivity, it can also inform about forest biomass and variation in terrestrial carbon stores over time. Here, we develop a straightforward method to predict SG based on wood ...
The frequency of wood-anatomical characters in the eastern North America dicotyledonous tree flor... more The frequency of wood-anatomical characters in the eastern North America dicotyledonous tree flora shows spatial variance that can be related to climate (40% of the variation in 18 characters is explained by temperature and precipitation). Percent of taxa with rings varies with mean annual temperature, but the relationship is weak and the difficulties in making determinations as to presence or
The fossil woods and leaves of the Fossil Forest Piedra Chamana represent a diverse assemblage of... more The fossil woods and leaves of the Fossil Forest Piedra Chamana represent a diverse assemblage of plants dating to 39 Ma (late Middle Eocene). The fossils are preserved in an ashfall and overlying lahar deposits near the small village of Sexi in the northern Peruvian Andes (central Cajamarca). The assemblage includes dicot wood types and leaf morphotypes, as well as a diversity of monocot material. The ~30 dicot wood types are referred to the families Acanthaceae, Anacardiaceae, Apocynaceae, Combretaceae, Cordiaceae, Dipterocarpaceae, Euphorbiaceae, Fabaceae, Lechythidaceae, Lythraceae, Malvaceae, Melastomataceae, Muntingiaceae, Rubiaceae, Rutaceae, and Sapindaceae. Described herein are descriptions of the first 17 wood types that have been assigned to the families Acanthaceae through Lythraceae; descriptions of the additional wood types will appear in a later paper. The paleovegetation can be characterized as lowland tropical forest with a dry aspect based on preliminary analysis o...
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